WHAT A PAIN

On June 8, the pop star slipped and tore the cartilage in her left knee while filming a video for her single "Outrageous" in Queens, New York. The injury suspended production of the video and caused Britney to cancel the remaining 37 shows of her Onyx Hotel Tour, likely costing her "tens of millions of dollars," Billboard senior writer Ray Waddell said at the time. "She would have been one of the top-grossing tours of the year had she played it out."